What is variability? What are the three types of variability? Why is variability valuable as a descriptive tool? Explain how to calculate and give an example for each type.
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- What is the most frequently used measure of variability? What does this measure represent?
- What is an unbiased estimate and why are unbiased estimates usually “best practice” in statistics?
- How are the standard deviation and the variance the same? How are they different?
- What are the degrees of freedom for sample variance?
- What does the standard deviation measure?
Looking forward to our discussions on these topics this week!
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